14 



THE CUBA REVIEW 



dredged to a depth of 28 feet. The approach-channel, 2,500 feet long'- and 200 feet width, 

 was dredged to the same depth. Felton, on Cagimaya Bay, a well-protected branch on 

 the south side of Nipe Bay, close to its entrance, has proved a very safe and satisfactory 

 harbor. 



Each year more investigations are made of the deposits beyond the mines opened, and 

 the results confirm the statement that this and the Mayari beds contain fully 500,000,000 

 tons with an extensive area still unexplored. The tonnage available for steel making 

 may be 600,000,000 or more, as only a half million tons or more of ore are mixed 

 annually. — Henry Hale, in the Scientiftc American, New York. 



The Mining and Engineering World recently printed abstracts of discussions before 

 the American Institute of Mining Engineers in February, 1912, on the valuation of iron 

 mines for taxation. In the course of the proceedings comparisons were made of the 

 Cuban ore vC^ith that of the Lake Superior mines, and Mr. E. E. White of Ishpeming, 

 Mich., prepared a table of costs of nodulized Cuban ore, which is as follows : 



COST OF CUBAN ORE AT PITTSBURGH 



Cts. per Unit 



Mining, 27 cts. per ton, 40 cts. nodulized 0.76 



NoduHzing, $1 per ton 1.89 



1,200 miles sea-haul at 0.05'22 = 62.6 cts. per ton 1.19 



25 miles land-haul in Cuba at 0.336 = 8 cts. per ton 0.15 



328 miles land-haul to Pittsburgh at 0.336 = $1.10 per ton 2.09 



Loading and unloading boats, 10 cts. per ton 0.19 



Terminal costs in Cuba, 18 cts. per ton 0.34 



Terminal costs in U. S., 15 cts. per ton 0.28 



Royalty, 5 cts. per ton 0.095 



Taxes, 5 cts. per ton 0.095 



Premium for Bessemer quality, 48 cts. per ton. 7.080 



Premium for phosphorus, 0.025 per cent, 25 cts. per ton. 



Total premium, 73 cts. per ton 1.38 



Total cost per unit to compare with cost of average Lake Superior ore at 5.57 5.70 

 Duty, 12 cts. per ton 0.23 



5.93 



Steam drag at Felton mining properties owned by the Spanish-American Iron Company. 



